42566634 has 40 divisors (see below), whose sum is σ = 104056128. Its totient is φ = 12898440.

The previous prime is 42566621. The next prime is 42566659. The reversal of 42566634 is 43666524.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10162 + ... + 13725.

Almost surely, 2^42566634 is an apocalyptic number.

42566634 is an abundant number, since it is smaller than the sum of its proper divisors (61489494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42566634 is a wasteful number, since it uses less digits than its factorization.

42566634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23912 (or 23903 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 42566634 is about 6524.3109981055. The cubic root of 42566634 is about 349.1588891270.

The spelling of 42566634 in words is "forty-two million, five hundred sixty-six thousand, six hundred thirty-four".